Greeting

My name is Mark Lee

I'm a Product Leader based in Singapore that has built products from 0 to 1, and scaled to millions. During my free time, I love to design + develop side projects that put a :) on peoples' faces.

↓ Scroll down to see the work I'm most proud of

Reach out. Say hi. 

VisualPH

A more visual way to experience Product Hunt. View landing page designs and gallery images/videos of the top products. Get website/launch inspiration.
RoleFounder, Designer & Developer
When2025 – Presesnt
WorkDesigned, developed and launched in 3 days. Setup a daily automation to fetch the products from the Product Hunt API and use puppeteer to generate full webpage screenshots. Implemented date/category filters and the ability to sort by daily ranking/upvotes. Perfectly responsive for mobile as well!
ImpactLaunched on Product Hunt Jul 9, 2025, achieved #3 Product of the Day
Stack
GitHub Actions
Lucide
PostHog
Puppeteer
ShadCN
Supabase
Tailwind CSS
Vercel

tinyhumans

A 100% community-driven web app that helps new parents locate nursing rooms and diaper changing stations in Singapore.
RoleFounder, Designer & Developer
When2025 – Presesnt
WorkCollected data for 300+ nursing room locations in Singapore, including the address, directions and available amenities. Created a NextJS web app that gets the user's current location and displays the nursing rooms that is nearest to them. Users can also leave reviews, contribute photos and add new locations. The web app was designed for new parents to get instant access (no app to download) and use with one-hand (because the other hand is always busy with the baby).
Impact~2,000 unique visitors per week
Stack
Lucide
Mapbox
PostHog
PWA
Supabase
Vercel

Locofy.ai

SaaS AI-powered developer tool that converts Figma designs into frontend code
RoleLead Product Manager
When2024 – 2025
Work• Launched the company’s first pricing plans and achieved US$100,000 in sales in the first month of monetization
• Revamped the flagship product’s UI/UX
• Led the strategy of rolling out B2B enterprise sales and onboarding
• Led the consumer-facing side of the product with 300,000+ users, which includes a Figma plugin and various web app
• Lead product marketing by developing the go-to-market strategy for launching products; includes recording videos, writing developer docs, designing emails and speaking at meetups and conferences

Sanrio

Japanese entertainment company best known for Hello Kitty
RoleSole Website Developer
When2023
WorkCollaborated with their in-house designers to build a new website from scratch for their South East Asia region. This involved using Wordpress custom post types/fields that would allow them to easily manage the content independently.
Stack
Bricks Builder
Meta Box
Wordpress

Supply

Power bank sharing network
RoleCo-founder, designer & developer
When2023 – Present
Work• Sourced and manufactured power bank rental machines
• Designed and developed software enabling consumers to rent power banks in under 10 seconds, significantly outperforming the 10-minute process of competitors
• Created a self-serve software solution for merchants to manage the machine’s screen, enhancing user experience and merchant control
• Executed cold-calling and door-to-door sales strategies, successfully partnering with high-profile clients such as Singapore National Stadium, Harry's, and Anytime Fitness.
• Deployed ~100 machines, resulting in more than 2,000+ rentals and $1,000+ in MRR
Stack
Amplitude
AWS
NodeJS
PWA
React
Redash

Get into YC

A website that has 50+ Y Combinator applications for aspiring founders to learn from
RoleFounder, Designer & Developer
When2023 – Present
WorkCollected 50+ Y Combinator applications and built a website that allows users to filter and sort according to their needs.
Impact~3,00 unique visitors & ~20,000 pageviews per month
Stack
Meta Box
Wordpress

Stackable

B2C Productivity-based browser extension SaaS
RoleCo-founder & designer
When2022 – Present
Work• Designed and developed a browser-based productivity tool that helps users efficiently manage tabs and bookmarks, enhancing workflow and productivity
• Applied to Y Combinator Winter 2023 batch and advanced to the second interview round
• User base includes employees from prominent companies: Google, Meta, Salesforce and Atlassian
Impact1,000+ monthly active users (MAU)

GRIT

Recruitment-tech startup
RoleHead of Product
When2020 – 2024
Work• As a founding employee, led the end-to-end development of an AI-powered hiring platform, transforming recruitment processes and improving hiring efficiency
• Led the creation and iteration of product features, focusing on user-centric design and functionality
• Developed and automated internal tools, streamlining processes and increasing productivity across the team
• Managed a remote team of 6 engineers, overseeing product design, development, and operations to ensure timely and quality deliverables

STOHR

D2C silicon bag
RoleCo-founder
When2020 – 2021
Work• Sourced and manufactured a food-grade silicone bag
• Sold 1,000 pieces on the first day of launch
• Built a Shopify website to sell the product
Stack
Klaviyo
Shopify

Zenyum

One of the largest invisible aligner brands in Asia
RoleSole Product Designer
When2018
WorkDesigned their first mobile app that allowed patients to track their journey and connect with doctors.
Stack
Axure
Figma

Beam

APAC’s largest shared micromobility startup
Role1st Product Manager
When2018 – 2020
Work• Led the consumer-facing side of the product from headquarters and owning the end-to-end product development of the following verticals: payments, localization, government relations, partnerships, CRM, user growth, user retention and user experience
• Played a prominent role in the launching of Australia, New Zealand, South Korea, Malaysia and Taiwan
• Implemented scrum framework in bi-weekly sprints with a team of 6 engineers and 1 product designer
• Defined and built company-wide SQL dashboards to monitor real-time core business metrics

Uber

Largest transportation company in the world
RoleCountry Product Lead
When2016 – 2018
Work• Lead the launch of all Uber products on both the Uber Rider and Driver apps (used by more than 1 million active local users); each launch entailed product testing, UX research, product rollout and education; new product types include UberFLASH, uberPET and uberASSIST; new product features include Wait Time, multi-destination and rider/driver loyalty programs
• As part of the core UberFLASH launch team with the ComfortDelGro merger, more than 10,000 new taxi drivers successfully onboarded and extensively educated them on the proper usage of the Uber Driver app via professionally tailored video tutorials and detailed guidebooks
• In-charge of rider and driver pick-up experience; creating more than 1,000 dedicated pick-up spots that riders can select in their app and solving mapping issues faced by drivers; thus lowering ETAs, contact rates and cancellation rates
• Worked closely with the business development team to single-handedly design and develop a rider loyalty product from scratch, allowing Uber to successfully obtain major business accounts with large companies such as Google, Visa and JetStar Asia.
• Given full autonomy of developing, designing and maintaining Uber’s and Lion City Rental’s websites and servers, totalling 10 websites; enabled the LCR website to accept online car rental deposits which skyrocketed total deposit revenue by 30% in a matter of a couple weeks
• Headed the event operations for Uber X Laneway 2018 Festival; coordinated 50 staff to ensure smooth operations for both the rider and driver queue systems; developed product hacks for a tailored rider/driver pickup/dropoff experience; resulted in more than 1,200 pickups (300% YOY) compared to the last year and ETAs of less than 3 mins